Improvement in machines for nailing boots and shoes



2Sheets-Sheet1. F. M. SHAW. MACHINES FOR NAILING BOOTS AND SHOES.IT0.169,661 Patented Nov'. 9,1875.

N. PETEHS, PHOTO-LITHDGRAPHER, WASHINGTON, D c.

p for supporting the main operating parts; B

UNITED STATES FRANCIS M. SHAW, OF BROOKTON, ASSIGNOR TO DAVIDWHITTEMORE, OF

WOLLASTON, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR NAILING BOOTS AND SHOES.

v Specification forming part of Letters Patent N 0. 169,661, datedNovember 9, 1875; application filed I February 5, 1875.

To all whom it may concern:

{Be it known that I, FRANCIS M. SHAW, of Brockton, in the county ofPlymouth and State of Massachusetts, have invented certain new anduseful Improvements in Machines for Nailing Boots and Shoes; and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it pertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification. 1

In the said drawings, Figure 1 is a side elevation, and Fig. 2 a topview, of anail-driving machine embodying my improvements. Fig. 3 is adetailed sectional view of the headstock, the cross'head, the driver,the drivertube and spring nail-retainers, the nail-re ceiving tube, andshowing sundry parts adjacent thereto. Fig. 4 is another detailedsectional View taken through the awl-stock, thcawl, the driver,driver-tube, and nail-retaining jaws. Fig. 5 is another detailedsectionalview, showing the screw-transferrers, their connecting-gears,and the arrangement of the said transferrers with respect to thenail-receiving tube. Fig. 6 is another sectional detailed view, takenlongitudinally and vertically through one of the nail-reservoirs, andshowing the parts immediately adjacent thereto.

My invention may be said to be an improvement upon the well-knownautomatic peggingmachine; and consists in dispensing with the mechanismfor holding, severing, and feeding the peg-wood, and substitutingtherefor mechanism, as hereinafter described, whereby the machine isadapted to thedriving of headed nails, the nails being conveyed from oneor more reservoirs, carried to and inserted in the soles of boots andshoes automatically.

In the drawing, A denotes the base or frame the driving-shaft; O, thehead-stock, which is securely afiixed to one end of the frame. D is across-head, which slides horizontally on the he ad-stock"G. E. is ablock, which slides vertically in the cross-head D. This block E has theawl-stock that carries the awl at nectedwith the head-stock O is aframe, G,

which is securely bolted thereto, and carries the nail-feedingmechanism, next to be described.

Pivoted to the frame G, at H H, is a rocking frame, I, which, at itsrear part, supports two elevated frusto-conical nail-reservoirs, J J,each having one or more flanges or radial shelves, 0,, upon its innersurface, as shown in Figs. 2 and 6. K K and K K are inclined slottedbarsor ways affixed to the frame I, and respectively extending up intothe interior of the nail-reservoirs, as shown in Fig. 2, a portion ofthe reservoirs being broken away in order to exhibit the same. Theseways are formed with beveled inner edges to receive the nails, andsupport them by their heads while traveling down the ways. The lower endof each nail-reservoir has a wide elastic head, 0, of rubber or itsequivalent, inserted therein, such having a hole made through it ofsufficient size as to allow the ways to pass through it, and also thenails, when suspended in the ways by their heads. An elastic washer, d,is firmly secured against each elastic head by a retaining-block, e,

affixed to .the ways, as shown in Figs. 1, 2,

and 6. Each of the said ways is so arranged as to operate with thestationary sectional ways ff affixed to the frame I, as shown in Figs.1, 2, and 5, and by simply moving the rocking frame I either to theright or left either pair of the movable ways may be brought, ascircumstances may require, into alignment with the stationary ways. Theemployment of thetwo reservoirs is to enable nails of different lengthsto be used, as may be desirable, without stopping the machine orchanging the reservoir, as would be required were the machine providedwith but one inciined way.

Supported in suitable hearings in the frame. G is a shaft, L, whichextends horizontally. of

PATENT OFFICE. j

the machine, and has on its front enda male screw,--g,-whichoperates'with another screw,

g,-i1w.hich. is supported in bearings in. the frame an arran er in esame lOIlZOll a J ane G, d g 1 th 1 t 1 1 with the screw g, and in suchclose relation therewith as to permit their threads to rotatewithouttoncliing, the two threads being cut tance apart as to receiveand support the heads of the nails between the two. These screws .are.connected by gears s 3, (having a like number of teeth, as shown. inFig. 5,) such screws being disposed in front of the stationary ways f f,and receiving the nails between themas they drop from" the said ways.These screws have not their threads extending to their extreme outerends, but terminate at a point in a vertical plane over a -hollowreceiving-tube, M, which is affixed to'--the"front "end-0f the frame G,and intowhich the-nails successivelyd'rop when released from the-threadsof the screws. The' rotation of the screws 'is' effected by a spurgear,l, 'on"the shaft L, which engages with a gear, m,:disposed on thedriving-shaft, each -of the'gears land m having a like number of teeth,iuorder that the "shaftL an'd the driv in'g -shaft shallperform alikenumber of revolutions, and thereby cause the screws to' v make a-singlerevolntion', and discharge a nail. at each revolutionof thedriving-shaft, a h olebein'g made in the sole, the sole fed along,a'ndthe. driverra'ised and forced downward at each revolution'ofthedriving shaft.

.gDi'sposed nearone end of the shaft L is a friction-wheel, N, which isso arranged as to bear against the surface of either ofth'enailreservoirs,'as'may bedesired, and serving-to:

impart rotation'nthereto, and thereby raise the nails which may lodgeon? the partitions,

which,;-'when'the latter shall have been raised into a verticalpositionover the ends of the inclined ways, will deposit more or less of thenails thereon. The? tube M, having its mouth directlyiunder J thedischarging end 'of the screwtransferrersg g, extends down and opensinto. thedriver-passage 4 near its upper end at aslight inclinationthereto, such driver-passage ,b'ein g formed-in a toe, a, whichisaffixed .to' the under'part of the head-stock 0;. do areitwo.spring-retainers,'which are affixed to the toe-part n, the same beingformed .w-ithli'ps to extend down and close soleqiritowhich the nailsare to be driven conin "opposite directions, and being of such dis-EGQAEGK stitutes no part of my invention, I would remark that'the jackemployed-in the ordinary automatic pegging-machine may beused, or anyother suitable for the purpose, as the support and guiding ofthe boot orshoe, whether being pegged or nailed, are precisely similar.

Having described my invention, its opera tion is as "follows: If wesuppose the reservoirs to have been supplied with nails, andthedriving-shaft to have been put in revolution, the friction-wheel Nwill cause the reservoir with which it is in connection to rotate, and,when its shelves have been brought to their highest point andover theforked ways, will discharge the nails therefrom, a part falling on theways, and will, by the concussion of the driver, be caused to fallbetween the ways, and be suspended therein "by their heads. Should anyfall sidewise upon the ways upon reaching the opening in the rubberhead, the

latter, by-impinging against the same, will,

by its rotation, remove them laterally-from; the'ways, while'the nailsproperly suspended by their'heads in the ways will be caused, by thecontinued concussion of the driver, to passdownthe ways K'K or K" K intothe sta-' tiona'r'y ways f f, from which'they'will pass" into thescrew-transferrers,by which they will be carried forward, and a singleone at a time dropped into the mouth of the tube M, or into thenail-passage in the toe n, the action of the screws and the-driver beingso timed that the nail shall be dropped into the tube when the) driveris down. The point of the nail, im-' pinging against the side of thedriver, will be;

retained thereby until the driver vis raised, when the nail will drop'into the driver-passage in the toe a, where itwill be retained thespring or retainers until the driver shall next descend,'wh en the nailwill be driven into the sole; 7 Y

I I would remark-that, if desirable, a single arrange the frame G thatthe nails, when discharged-'from' the screw -transferrers, shall dropdirectly into the nail-passage win the toe n. a Y 7 e WhatI claim as myinvention 1s- 1. In a machine for nailing boots and shoes,

the combination, with the ways K K and K" K, ofthe reservoirs J J, eachprovided with one ormore shelves and an elastic dis'charg-. ing-head, c,substantially as and for the purpose set forth. t

2. In combination with the inclined ways f f, the screw transferr ers 'gg, for conveying and discharging the nails singlyinto the nail I tubeMor passage/r of the .toe' a, substantial] as and for the purpose setforth.

a The combination, with the frame G, rof" vided with the stationary waysf f, of the rocking frame I, having two sets of inclined ways andnail-reservoirs, substantially as'and for the purpose set forth.

4. In combination with the reservoirs J J,

or either of them, the friction-wheel N, as and for thepurpose setforth.

5. In a machine for nailing boots and shoes, the combination, with aninclined way for receiving and guiding the nails, of a rotarynailreservoir, provided with an elastic discharging-head, as and for thepurpose set forth. I

6. In a machine for nailing boots and shoes, the screw-transferrers g g,for receiving, conveying, and discharging the nails singly into thenail-tube, substantially as set forth.

7. In combination with suitable receptacles for receiving the nails inbulk, an interchangeable delivering mechanism, adapted to deliver fromeither receptacle according to the length of nails desired,substantially as specified.

' In testimony that I claim the foregoing as my own invention 1 aifix mysignature in presence of two witnesses.

FRANCIS M. SHAW.

Witnesses:

F. P. HALE, F. O. HALE.

